Finite-Difference Time-Domain Modeling of Three-Dimensional Metallic Photonic Crystals and Surface Plasmon Phenomena
Date Issued
2005
Date
2005
Author(s)
Le, Chi-Her
DOI
zh-TW
Abstract
The electromagnetic phenomena and applications of periodic metallic structure are studied with the finite difference time domain method.
Three dimensional tungsten woodpile structures has potential to luminesce efficiently.
The transmission spectrums of the photonic crystals are obtained.
The structures has band gap in the infrared region in which most electromagnetic wave in the infrared region is reflected and absorbed more in the band edge by tungsten.
Only electromagnetic wave in visible region can pass through.
Using silver as the gratings and electric field perpendicular to the grating grooves, there are surface plasmon phenomena and very high transmittance in long wavelength region.
We will discuss the mechanism. When electric field is parallel to the grating grooves, there are low frequency band gaps.
Using two gratings as woodpile structures, we can design the structures as color filter.
Subjects
有限時域差分法
光子晶體
表面電漿
奈米金屬光柵
色彩濾波器
FDTD
photonic crystal
surface plasmon
nano metallic grating
color filter
Type
thesis
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